Polish (Sokolsky) Versus Dutch!

At the 365Chess Chess Opening Explorer we find an “Engine Eval.” for the top seven moves played against the “A00 Polish (Sokolsky) opening.” 1…f5 is the eighth most often played move, with 57 games in the database.

Gabriel Barandiaran 1834 vs Alvaro Guerrero 2094

Duchamp Cup 2020 round 09

1. b4 f5 2. Bb2 Nf6 3. Nf3 c6 4. e3 d5 5. c4 e6 6. c5 b6 7. d4 a5 8. a3 Be7 9. Ne5 O-O 10. Be2 Qc7 11. Nd2 Na6 12. cxb6 Qxb6 13. Qa4 axb4 14. Qxc6 Rb8 15. a4 Qa7 16. Bb5 Rb6 17. Qc2 Nb8 18. O-O Ba6 19. Bxa6 Rxa6 20. Rfc1 Bd6 21. Ndf3 Ne4 22. Ne1 f4 23. exf4 Bxe5 24. dxe5 Rxf4 25. Nd3 Rf8 26. Qc7 Nd2 27. Qxa7 Rxa7 28. Nc5 Kf7 29. Bd4 Rc7 30. a5 Nc4 31. a6 Nc6 32. Nb3 Ra8 33. f4 Kg6 34. Bc5 Kf5 35. g3 g5 36. fxg5 Kxg5 37. Bd6 Rca7 38. Nc5 N6xe5 39. Nxe6+ Kf6 40. Nc7 Nxd6 41. Nxd5+ Kg5 42. Nxb4 Nf5 43. Ra5 Nf3+ 44. Kf2 Nd4 45. g4 Kxg4 46. Rg1+ Kh4 47. Rga1 Kg5 48. Re1 Kg6 49. Re4 Rb8 50. Nd5 Rb2+ 51. Ke1 Nf3+ 52. Kd1 N5d4 53. Nf4+ Kf7 54. Kc1 Rc2+ 55. Kd1 Rd2+ 0-1

1 b4 f5 2 Bb2 (e3 SF) Nf6 3 Nf3 (SF 10 @depth 34 shows 3 e3, but going deeper to depth 40 prefers 3 b5, a TN) 3…c6
(SF 3…e6)

The only other game found with 3…c6

Camilla Baginskaite (2336) vs Michael Aigner (2263)
Franett mem San Francisco  01/03/2005
A04 Reti v Dutch

1.Nf3 f5 2.b4 Nf6 3.Bb2 c6 4.c4 d6 5.d4 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O Na6 9.Qb3 Nc7 10.a4 Ne4 11.b5 c5 12.e3 Ne8 13.Nbd2 N8f6 14.Rad1 Qc7 15.Nxe4 Nxe4 16.Nd2 Be6 17.d5 Nxd2 18.Rxd2 Bd7 19.Bxg7 Kxg7 20.Qc3+ Rf6 21.a5 Rf8 22.Rfd1 Kg8 23.f4 R8f7 24.Re1 Qd8 25.Rde2 Qf8 26.e4 fxe4 27.Rxe4 Qg7 28.Qe3 Kf8 29.h3 h5 30.Kh2 Bc8 31.Re6 Ke8 32.h4 Kd8 33.Bh3 Bd7 34.Re2 Qf8 35.Bg2 Rg7 36.Qc3 Bc8 37.Bh3 Bd7 38.Rxf6 Qxf6 39.Qxf6 exf6 40.Be6 Re7 41.f5 gxf5 42.Kg2 Bxe6 43.dxe6 Rg7 44.Rf2 Ke7 45.Rxf5 Rh7 46.a6 b6 47.Kf3 Kxe6 48.Ke4 Rh8 49.Rd5 Rh7 50.Rf5 Rh8 51.Rd5 Rh7 ½-½

Possible Mission?

The moves in bold are only the red colored moves as shown over at the ChessBomb. The game contains other colorful, but not red, moves. The moves in bold are what GM Yasser Seriwan

would call “Howlers.” These two women are “grandmasters,” but I am uncertain if they are grandmasters in the sense of what the GRANDMASTER title should be, meaning GM, whether male or female. It could be that each woman is only a WGM, with ChessBomb leaving off the “W”. This is only one of myriad reasons no title should begin with a “W”! As one of the denizens of the House of Pain asked, “How come a woman can be a Woman Grandmaster, but not a Grandmaster, and why can a man not become a Male Grandmaster without becoming a GM?!” Why indeed…
GM Valentina  Gunina 2461

vs GM Dronavalli Harika 2518

Cairns Cup 2020 round 05

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Qd2 b5 8. h3 b4 9. Nd1 Bd7 10. f4 e6 11. Nf3 Nge7 12. h4 Nd4 13. h5 Ba4 14. Rc1 Nec6 15. Nxd4 cxd4 16. Bf2 Qa5 17. g4 Bb5 18. h6 Bf6 19. g5 Bd8 20. b3 Rc8 21. O-O O-O 22. Bg3 Qxa2 23. f5 Be7 24. Bh3 exf5 25. exf5 Ra8 26. Nf2 Ne5 27. Ne4 Bxd3 28. Bxe5 Bxe4 29. Bxd4 Qa5 30. Qe3 d5 31. fxg6 hxg6 32. h7+ Kxh7 33. Be6 Bxg5 34. Qxg5 Qd8 35. Bf6 Qb6+ 36. Rf2 fxe6 37. Qh4+ Kg8 38. Qh8+ 1-0


Hugh Siddeley 1974 vs Eduardo Osinaga 1697

Duchamp Cup 2020 round 07

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Ne2 h6 8. Nbc3 Nf6 9. Ng3 Be7 10. Nh5 O-O 11. Nxf6+ Bxf6 12. Nd5 Bd8 13. g4 Bh4 14. Be3 Na6 15. Rg1 f6 16. Qd2 Bg5 17. O-O-O Qa4 18. Nc3 Bxe3 19. Qxe3 Qb4 20. h4 Qc5 21. Qg3 Rf7 22. Rd2 Nc7 23. g5 fxg5 24. hxg5 hxg5 25. Qxg5 Ne6 26. Qg6 Re8 27. Rh1 Nf4 28. Rh8+ Kxh8 29. Qxf7 Re6 30. Qxb7 Rh6 31. Nd1 Qa5 32. a3 Qc5 33. Kb1 a5 34. Ne3 Kh7 35. Qf7 Rf6 36. Qc4 Qb6 37. Rd1 Rh6 38. Qf7 Nh5 39. Nf5 Qd8 40. Rh1 Qg5 41. Nxh6 Kxh6 42. Rxh5+ Qxh5 43. Qxh5+ Kxh5 44. b4 1-0


Valentina Gunina  vs Dronavalli Harika

Cairns Cup 2020 round 05

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Qd2 (Komodo plays 7 Nge2) 7…b5 8. h3 b4 (SF 10 plays 8…a5) 9. Nd1 Bd7 (Houdini’s move. Komodo 13.25 @depth 31 plays 9…a5. Komodo 13.02 @depth 28 likes 9…Nf6)

10. f4 (SF 9 @depth 27 shows 10 a3; Komodo @depth 31 plays 10 Ne2) 10…e6 (Other moves are possible, and better, such as 10…Nf6 and 10…Qc8, but best, according to the Fish, is 10…a5)

11. Nf3 Nge7 12. h4 (12 a3) 12…Nd4 13. h5 (13 Bxd4)

13…Ba4?? (RED MOVE! Although this is a ‘forcing’ move it is a terrible move. There was nothing wrong with simply castling, or even 12…Qc7)

14. Rc1?? (RED MOVE! IM Boris Kogan was fond of saying, “He attack, you defend. You attack, he better defend.” 14. Bxd4 Bxd4 15. Nxd4 cxd4 16. b3 is easy to see and is much better for white) 14…Nec6? (14… Nxf3+ 15. Bxf3 looks normal) 15. Nxd4? (15 h6) 15…cxd4 16. Bf2

16…Qa5? (“Why Mike? Why?” Boris would ask as he moved the black pawn from g6 to g5)

17. g4 Bb5 (Stockfish shows three better moves, 17…h6; gxh5; and 0-0) 18. h6 Bf6 19. g5 (SF wants to play 19. a4 Qxa4 20. b3 Qa5 before playing 21. g5. Other, stronger, players, when annotating a game have been known to add “This is a computer move,” here, as if we humans are not strong enough to understand the program’s logic. I reject this. There is no such thing as a “computer move.” The better moves are there, even if some human Grandmasters cannot fathom the logic behind the better move. It is my contention that there is no such thing as a “computer move” except in the weak mind of the human who continues to write such nonsense)

19…Bd8 (19…Be7 looks natural, does it not?) 20. b3 Rc8? (The two best moves in the position are 20…Qxa2 and 20…e5) 21. O-O O-O (21…e5) 22. Bg3 Qxa2 (again 22…e5) 23. f5

23…Be7 (RED MOVE! 23…Ne5 is much better)

24. Bh3 (24 Nf2 or f6 are better) 24…exf5? (24…gxf5) 25. exf5 Ra8? (PINK MOVE!) 26. Nf2 (26 f6)

26…Ne5?? (RED MOVE!)

27. Ne4? (RED MOVE! 27. Bxe5 dxe5 28. Ra1 and it’s, “Turn out the lights, the party’s over…”) 27…Bxd3? (PURPLE move! 27…Qa5)

28. Bxe5? (RED MOVE! 28 fxg6) 28…Bxe4 29. Bxd4 (PURPLE move! 29. Bxd6 Bxd6 30. Qxd4) 29…Qa5 (PINK move! 29…Qa6) 30. Qe3 (30. Rce1) 30…d5? (RED MOVE! 30… Rae8 31. Qxe4 Bxg5 32. Qg4 Bxc1 33. Rxc1 has got to be better) 31. fxg6 hxg6 (RED MOVE! Not that it matters…) 32. h7+ Kxh7 33. Be6 (RED MOVE! Play 33 Bc8 and put the woman outta her misery, for crying out loud…not that it matters…) 33…Bxg5 34. Qxg5 Qd8 35. Bf6 Qb6+ 36. Rf2 fxe6 37. Qh4+ Kg8 38. Qh8+ 1-0


Hugh Siddeley 1974 vs Eduardo Osinaga 1697

Duchamp Cup 2020 round 07

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Ne2 h6 8. Nbc3 Nf6 9. Ng3 Be7 10. Nh5 O-O 11. Nxf6+ Bxf6 12. Nd5 Bd8 13. g4 Bh4 14. Be3 Na6 15. Rg1 f6 16. Qd2 Bg5 17. O-O-O Qa4 18. Nc3 Bxe3 19. Qxe3 Qb4 20. h4 Qc5

Now the fun begins…

21. Qg3? (Qh3) Rf7? (Nc7) 22. Rd2? (g5) Nc7? (Raf8) 23. g5 fxg5 24. hxg5 hxg5 25. Qxg5 Ne6? (Re8)

26. Qg6? (Qh4) Re8? (Nf4) 27. Rh1 Nf4 28. Rh8+ Kxh8 29. Qxf7 Re6 30. Qxb7 Rh6 31. Nd1 Qa5 32. a3 Qc5? (Kh7) 33. Kb1? (b4) a5? (Qa5) 34. Ne3 Kh7? (Ne6) 35. Qf7? (Rd1) Rf6? (Qc8) 36. Qc4? (Qd7) Qb6? (Qxc4) 37. Rd1 Rh6? (Qb7) 38. Qf7 Nh5? (Qd8) 39. Nf5? (Qf5+) Qd8 40. Rh1 Qg5 41. Nxh6 Kxh6 42. Rxh5+ Qxh5 43. Qxh5+ Kxh5 44. b4 1-0

Before completing this post an email was received from my friend Michael Mulford who, frankly, is one of the best reasons to be involved with Chess. Michael has been one of the “good” guys involved with the Royal game and has now become one of the “Great” guys.


Since I saw the first game live I can’t fairly take your challenge and I’m thus not copying the others. But just for the fun of it I decided to see how long the opening in the second game stayed in book. Using chess.com’s opening library I found – the whole game! And it’s just a couple days old and apparently an on-line game. So what on earth led you to select that particular game. That might make a good followup, and I suspect you plan to answer that in your story.

Since I already knew the answer, I Fritzed the games. The accuracy percentage on the first one was something like 32% for the winner and 45% for the loser. In the second game it was 62% for the winner and 26%. That’s remarkably accurate for white in an on-line game if it was a fast time control, but perhaps not so unreasonable if it was a 3 day per move game.

Feel free to use my comments when you post the answer.


First, I was unaware chess.com even had an opening library. As regular readers know I use the ChessBaseDataBase and 365Chess. I was also unaware a game could be “Fritzed.” At one time I had an older Fritz on my laptop, but it sputtered to death and I have no “engine” at all.

What led me to the game is that I played the Closed Sicilian “back in the day” and have actually had the position from the Gunina vs Harika after seven moves on a board during a regulation USCF rated tournament several times. I invariably played 8 a3, so 8 h3 looks really weird. I do not even want to contemplate what IM Boris Kogan would have said, or how he would have looked, if I had produced played such a weak move.

As for the second game, Siddeley vs Osinaga, I was attracted to the tournament because I am currently reading a new book, which will soon be reviewed, Duchamp’s Pipe: A Chess Romance–Marcel Duchamp and George Koltanowski, by Celia Rabinovitch, which is difficult to put down. Unfortunately the games from the tournament could not be found at Mark Crowther’s unbelievably excellent The Week In Chess. I prefer TWIC because there is no engine analysis to cloud my judgement. I mean, what’s the point of watching a Chess game being played if one is spoon-fed? Therefore, I watched the games at the Bomb, where even if one covers the analysis one can still see the colorful moves as they are displayed onscreen. The thing I liked is that I was unfamiliar with most of the combatants and therefore had no idea what the opponents were rated. I decided to keep it that way until the tournament ended, giving me as an objective mind as possible. I made an attempt to ascertain the rating of each player during the tournament, which was made somewhat easier by the colorful moves. I suppose there were many games I could have used for contrast, but the aforementioned game just happened to be the one used. As an example, what do you think the players who produced this opening were rated?

1 e4 Nf6 2 Nf3 d6 3 Bb5+ Bd7 4 Bxd7+ Qxd7 5 O-O c5

The games were played during the late afternoon into the evening in Atlanta, which was real nice. Until the last round, which was today. I was shocked, SHOCKED to discover the games were concluding when I checked earlier today. A sickening feeling came over me as I railed against stupidity of the organizers who would hold a tournament with every round beginning later in the day except the final round. Chess players get into a routine and are thrown out of it by Fools In Power! I digress…After the penultimate round I decided to surf on over to Chess-Results.com and learn the ratings of the players before watching the last round.

As for the opening…Believe it or not this game was played in the sixth round by GM Gilberto Hernandez Guerrero 2557 vs GM Neuris Delgado Ramirez 2634. You can look it up…(https://www.chessbomb.com/arena/2020-duchamp-cup/06-Hernandez_Guerrero_Gilberto-Delgado_Ramirez_Neuris)

I give the full game because I want to show a position deriving from the endgame analysis by Stockfish:

1. e4 Nf6 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O c5 6. Re1 Nc6 7. c3 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ng8 11. b3 h5 12. Ba3 Bxa3 13. Nxa3 Nge7 14. Qd2 Nf5 15. Rac1 Qe7 16. Nc2 O-O 17. g3 Rfc8 18. Kg2 Rc7 19. Ne3 Nxe3+ 20. Rxe3 a5 21. Rec3 Rac8 22. h4 Nb4 23. Rxc7 Rxc7 24. Rxc7 Qxc7 25. a3 Nc2 26. a4 (26. Qg5 Nxa3 27. Qxh5 Qc2 28. Qg5 Qc7 29. h5 Kh7 30. g4 Nb5 31. Qf4 Nc3 32. Ng5+ Kg8 33. Qe3 Ne4 34. Nxe4 dxe4 35. Qxe4 Qc3 36. Qe3 Qxe3 37. fxe3 b5 38. e4 a4 39. bxa4 bxa4 40. d5 a3 41. d6)

Nb4 27. Kf1 Qc2 28. Qxc2 Nxc2 ½-½